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DCA5-20PC-1-DC1-RL-C
Ammeter, DCA5-20PC Series, DC Current, 3.5 Digits, 5 Vdc to 40 Vdc, Red
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: MURATA POWER SOLUTIONS
- Product type: Digital Panel Meters
- No. of Digits / Alpha:3-1/2; Meter Function:DC Current; Meter Range:0A to 5A, 0A to 50A, 0A to 500A; Digit Height:9.4mm; Panel Cutout Height:21.29mm; Panel Cutout Width:33.93mm;
- Meter Range: 0A to 5A, 0A to 50A, 0A to 500A
- Digit Height: 9.4mm
- Product Range: DATEL® DCA5-20PC Series
- Meter Function: DC Current
- Panel Cutout Width: 33.93mm
- Supply Voltage Max: 40VDC
- Supply Voltage Min: 5VDC
- Panel Cutout Height: 21.29mm
- No. of Digits / Alpha: 3-1/2
- Operating Temperature Max: 60°C
- Operating Temperature Min: 0°C
| Delivery and price | |
|---|---|
| Units per pack | 10 |
| Price | 45.21 € |
| Current stock | 10+ |
| Lead time | 30 days |
**- DCA5 20PC Series**
## **www.murata-ps.com**
50mV & 100mV Input, LED-Display, Subminiature DC Ammeters
## **FEATURES**
- Scales and displays the output of 5A to 2000A, 50mV & 100mV shunts
- Completely self-contained – no additional components required
- Wide power supply inputs: 5 to 40Vdc for 12V/24V/28V applications
- 48V option for telecom supplies
- Isolated-supply models for high-side shunts
- Large, easy-to-read LED display with 0.37” (9.4mm) high digits
- Available in red, blue or green LED displays
- Subminiature 1.38” x 0.88” package with screw-style terminal blocks
- Factory calibrated to ±0.1% accuracy; Reverse-polarity protection
- Over 50 models available
- Digital upgrade for analog meters
Murata Power Solutions’ new DCA5-20PC Series dc ammeters are specifi cally designed to display the output of all popular 50mV and 100mV dc-shunts. 25 input ranges provide for precision measurement of dc currents from 1.000A to 2000A. With the exception of an external shunt, the unit is 100% self-contained – no calibration or user-supplied components are required. Available LED-display colors include brilliant blue, bright green, and standard red. Three power supply options accommodate all popular dc-supply voltages from 5V to 75Vdc, making these ammeters perfect for automotive, industrial, telecom, and marine applications!
DCA5-20PC Series ammeters are housed in 1.38” x 0.88” (35mm x 22mm) rugged packages that feature a large, 0.37”/9.4mm high, LED display. However, display visibility is not compromised in any way: the display can be easily read at distances up to 15 feet (5 meters). All input and power supply connections are made by way of two screw-style terminal blocks. For added fl exibility, computer-style jumpers are provided for range-specifi c decimal point assignments. And, to ensure trouble free installation, all models include reverse-polarity protected power supply inputs.
Two input confi gurations are offered: grounded shunt (“low-side”), 5-40V-powered, red, green or blue LED models for cost-sensitive applications, and 8-36V isolated-supply models that accept high-side or fl oating shunts. Isolated-supply models are also available in a choice of red, green, or blue LEDs. Since many dc ammeters are used in battery backup applications, power consumption for 8-36V models is typically 1 Watt, and 75mW for 5-40V models.
Miniature size, wide supply inputs, and no-hassles installation make DCA5-20PC Series ammeters the ideal choice for all your 50 and 100mV shunt ammeter-applications.
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LED DISPLAY<br>+ +5V<br>AMPLIFIER INPUT * CAL CONVERTERA/D CONVERTERPOWER<br>– –5V<br>**<br>POWER<br>GROUND<br>1 2 SIGNAL 1 1 2 2<br>GROUND<br>TB1 TB2<br>–IN +IN +V –V (GND)<br>* Not included on all models<br>** Open on isolated power models<br>+ –<br>EXTERNAL EXTERNAL DC SUPPLY<br>50 or 100mV SHUNT<br>COMPLIANT For full details go to<br>[RoHS] www.murata-ps.com/rohs I]<br>**----- End of picture text -----**<br>
**Figure 1. DCA5-20PC Series Simplifi ed Schematic**
**www.murata-ps.com/support**
**MPM_DCA5-20PC.C01** Page 1 of 6
**- DCA5 20PC Series**
50mV & 100mV Input, LED-Display, Subminiature DC Ammeters
## **Performance/Functional Specifi cations**
Typical at TA = +25°C, unless otherwise noted.
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Input (TB1) ➀ Min. Typ. Max. Units<br>Full Scale Input ➀ 49.5 50 50.5 mV<br>Overvoltage Rating ➁ ±400 – – mV<br>Input Impedance – 1K – Ohms<br>Shunt Input to Power Supply Isolation ➂<br>DCA-20PC-X-DC4 models only 500 – – Vdc<br>Performance<br>Sampling Rate 2.5 reading per second<br>Accuracy ±0.15%FS<br>Zero-Current Reading ➃ “–001” “000” “001” Counts<br>Temperature Drift (0 = +60°C) – ±0.2 ±0.4 Cnts/°C<br>Power Supply Voltage (TB2)<br>DCA-20PC-X- DC1 -XX +5.0 – +40 Vdc<br>DCA-20PC-X- DC4 -XX +8 – +36 Vdc<br>Power Supply Current ➄<br>DCA-20PC-X- DC1 -XX (@ 5-40V) – 10 15 mAdc<br>DCA-20PC-X- DC4 -XX (@ 8V) – 100 150 mAdc<br>DCA-20PC-X- DC4 -XX (@ 36V) – 25 40 mAdc<br>TB1 and TB2 Terminal Blocks<br>Wire Size 16-22AWG, solid or stranded<br>Insulation Strip Length 0.250 inches<br>Screw Tightening Torque 2.2 lb·in (0.25 N·m) ±20%<br>Rated Current 20A with 12AWG solid copper wire;<br>15A with 14AWG solid or stranded<br>copper wire<br>Display<br>Display Type and Size 3½ digit, 0.37"/9.4mm high red, blue or<br>green LED<br>Overrange Indication "–1_ _ _" for negative Vin<br>"1_ _ _" for positive Vin<br>Display Reading/Decimal Point Model dependent<br>Physical/Environmental<br>Operating Temperature 0 – +60 °C<br>Storage Temperature –20 – +75 °C<br>Humidity (non-condensing) 0 – 85 %<br>Case Material Polycarbonate<br>Dimensions 1.38"W x 0.88" x 1.0" nominal<br>Weight 0.6 ounces (17 grams)<br>**----- End of picture text -----**<br>
- ➀ A full-scale input voltage of 50.00mV is used to calibrate all models for their designated measurement range. The ammeter’s rear calibration potentiometer compensates for full-scale input variations up to ±1% (49.5 to 50.5mV).
- **Measuring positive and negative currents (bipolar operation)** : In applications where both positive and negative currents must be measured, Murata Power Solutions recommends using ‘-DC4’ 8-36V isolated supply models. Negative current fl ow is denoted by the illumination of the display’s negative (–) sign; the absence of a negative sign implies positive current fl ow. Contact MPS if you have any questions regarding bipolar operation of DCA5-20PC ammeters.
## **Ordering Information**
## **DCA5-20PC - x - DC1 - R L - C**
||||power<br>or -PGL LEDs)<br>er<br>or -GS LEDs)<br>**LED Color:**<br>**BL**= Low-Power Blue<br>**BS**= Super Blue<br>**GS**= Standard Green<br>**PGL**= Low-Power Green<br>**RL**= Low-Power Red<br>Add**-C**for RoHS|
|---|---|---|---|
|**Inp**|**ut Range:**|||
|**Use with these 50mV shunts***<br>**or**<br>**with these 100mV shunts***<br>**1**<br>5A<br>50A<br>500A<br>10A<br>100A 1000A<br>**2**<br>1A<br>10A<br>100A 1000A<br>2A<br>20A<br>200A 2000A<br>**3**<br>30A<br>300A<br>60A<br>600A<br>**4**<br>75A<br>750A<br>15A<br>150A 1500A<br>**5**<br>15A<br>150A 1500A<br>—<br>**6**<br>2A<br>20A<br>200A 2000A<br>—<br>**7**<br>25A<br>250A<br>5A<br>50A<br>500A<br>**8**<br>400A<br>80A<br>800A<br>**9**<br>600A<br>120A 1200A<br>**10**<br>80A<br>800A<br>—<br>**11**<br>1200A<br>—|**Use with these 50mV shunts***|||
*With respective decimal point user enabled. See technical note 7.
**See www.murata-ps.com/dpm-availability for model-specifi c availability.**
|**Accessories:**|||
|---|---|---|
|**DMS-20-CP**|Panel Cutout Punch||
|**Shunt Model**<br>**3020-01097-0**<br>**3020-01107-0**<br>**3020-01098-0**|**Rating**<br>5A/50mV<br>10A/100mV<br>20A/50mV|**Use with**<br>DCA5-20PC-**1**<br>DCA5-20PC-**1**<br>DCA5-20PC-**6**|
|**3020-01096-0**|50A/50mV|DCA5-20PC-**1**|
|**3020-01099-0**<br>**3020-01108-0**<br>**3020-01100-0**|100A/50mV<br>100A/100mV<br>150A/50mV|DCA5-20PC-**2**<br>DCA5-20PC-**1**<br>DCA5-20PC-**5**|
|**3020-01101-0**|200A/50mV|DCA5-20PC-**6**|
|**3020-01102-0**|300A/50mV|DCA5-20PC-**3**|
|**3020-01103-0**<br>**3020-01104-0**|500A/50mV<br>800A/50mV|DCA5-20PC-**1**<br>DCA5-20PC-**10**|
|**3020-01105-0**|1000A/50mV|DCA5-20PC-**2**|
|**3020-01106-0**|1200A/50mV|DCA5-20PC-**11**|
A DMS-BZL4-C bezel assembly with sealing gasket is supplied with each ammeter.
- ➁ On non-isolated ‘-DC1’ models, continuous application of single-ended ±400mV inputs will not damage the ammeter. Single-ended inputs are defi ned as those whose TB1-1 (–IN) potential is within ±0.1V of the potential on TB2-2 (-V). For all models, the application of short-duration (5 seconds max.) ±1V inputs will not damage the ammeter.
- ➂ Breakdown (isolation) voltage applies only to ‘-DC4’ isolated-power models. Breakdown voltage is tested with TB1-1 tied to TB1-2 (–IN shorted to +IN) and TB2-1 tied to TB2-2 (+V shorted to -V). 500Vdc is then applied between the two shorted terminal-block pairs; the max. allowable leakage current is 5uA.
- ➃ Zero reading is measured with TB1-1 (–IN) shorted to TB1-2 (+IN).
- ➄ Power supply currents noted are measured with the 50mV shunt input (TB1) at zero volts (display reads “000”) and one decimal point enabled.
- ➅ Each model’s full-scale display reading with a 50.0mV input is designated by the fi rst X in the DCA5-20PC-X-XXX model number structure. Decimal point selection (DP1, DP2, DP3, or none) is performed by the user to suit desired amperage range. Input ranges -1, -2, -3, -4, -7, -8 and -9 can accommodate 100mV shunts. For these ranges, the indicated 50mV reading is doubled when a 100mV input is applied.
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**MPM_DCA5-20PC.C01** Page 2 of 6
**- DCA5 20PC Series**
50mV & 100mV Input, LED-Display, Subminiature DC Ammeters
## **TECHNICAL NOTES**
**To ensure safe and reliable operation, DCA5-20PC dc ammeters must only be installed and serviced by qualifi ed technical personnel. DC ammeter applications can expose a user to potentially lethal currents and voltages. Power and signal connections must be made with all associated power sources de-energized. Contact Murata Power Solutions if you have any questions regarding the installation or operation of any of our digital instruments.**
**1. Calibration:** DCA5-20PC ammeters are designed to operate with 50mV and 100mV dc shunts whose rated accuracy is ±0.25%, or better. The output of less accurate shunts may fall outside the ammeter’s ±1% calibration adjustment range. Under normal indoor operating conditions, periodic recalibration of DCA5-20PC ammeters is not necessary. The calibration potentiometer, located on the back of the ammeter, is a ¾ turn type; do not force its adjustment screw past the two end stops.
If user calibration is deemed necessary, it must be performed by qualifi ed personnel. Calibration is performed by applying a precision 50.00mVdc or 100mVdc (model specifi c, see ordering guide) signal to TB1, observing correct polarity. Then, using an insulated slotted tool, adjust the calibration potentiometer until the correct display reading is achieved. Contact MPS if additional information is required regarding calibration or setup of DCA520PC ammeters.
**2. Wiring and Fusing:** Power supply (TB2) and input (TB1) wiring must be rated for the electrical and environmental conditions under which the ammeters will be operated. They must also comply with any regulatory or application-mandated requirements pertaining to the user’s installation. Connections to DCA5-20PC ammeters must be made with all power sources de-energized. Refer to the Functional Specifi cations section for TB1 and TB2 wire gauge information.
DCA5-20PC ammeters’ shunt (TB1) and power supply inputs (TB2) are not internally fused. Therefore, the supply wires connected to the meter and the load should be fused according to the maximum current rating (or lower) of the wire gauge used, in accordance with applicable regulatory codes. Insulation should be stripped to within +/-10% of the stated dimensions. All wires must be inserted into the terminal block openings such that the screw terminal does not pinch any insulation. TB2 is to be used solely for powering the meter’s internal circuitry; it must not be used to supply current to an external load or auxiliary device.
**3. Terminal Block Torque Ratings:** It is important to tighten TB1’s and TB2’s screw-terminals to their rated torque specifi cations of 3.6 pound-inches (0.4Nm). Proper tightening will minimize losses and ensure reliable operation.
**4. High-Side versus Low-Side Shunts:** Incorrect shunt connections are one of the most common problems encountered when applying digital dc-ammeters. Incorrect shunt connections can cause permanent damage to the ammeter and/or its associated equipment.
**Low-Side Shunts:** Applications that employ a single power supply to power both the load and the ammeter, and the external shunt is located in the negative side of the supply (commonly referred to as “low side” or “grounded shunt”) should use ‘-DC1’ non-isolated power DCA5-20PC Series ammeters. Figures 2, 3, and 4 depict typical low-side shunt connections.
**High-Side Shunts:** ‘-DC4’ isolated-power ammeters must be used in all applications that employ a single power supply to power both the load and the ammeter **and** the shunt is located in the high side (positive terminal) of the supply. Figures 5 and 6 depict typical high-side shunt connections. As shown in Figure 6, isolated-power models can also be used in applications
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DCA5-20PC-X- DC1 -XX<br>é mT "lg 1<br>~ dalled) J3 J1 , J2 ~<br>® 1 1 =| 1 ee<br>CAL 2 2 2<br>os) I | " “E le 3 J3 MUST BE INSTALLED<br>(FACTORY SETTING) FOR<br>he y= 5-40Vdc SUPPLIES<br>ite = J1 AND J2 POSITIONS<br>DEPEND ON INPUT RANGE<br>‘in 1 TB1 2 Ae 1 TB2 2<br>–IN +IN +V –V<br>SHUNT MUST<br>BE IN LOW SIDE –<br>LOAD + DC SUPPLY5-40Vdc<br>50mV SHUNT<br>POWER<br>LOAD CURRENT GROUND<br>(0Vdc)<br>**----- End of picture text -----**<br>
**Figure 2. Low-Side Shunt Connections for "-DC1" 5-40Vdc Non-Isolated Supply Models**
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DCA5-20PC-X- DC1 -XX<br>e ee e 1<br>~ mn J3 J1 = J2<br>@ 1 1 1 @:<br>CAL 2 2 2<br>3 REMOVE J3<br>Ml ES : FOR 36-75Vdc<br>ti t == 3 SUPPLIES<br>= 7r..)lhUMUM<br>a<br>1 TB1 2 1 TB2 2<br>0° °° ° OC<br>–IN +IN +V –V<br>SHUNT MUST<br>BE IN LOW SIDE LOAD + D36-75VdcC SUPPLY –<br>50mV SHUNT<br>POWER<br>LOAD CURRENT GROUND<br>(0Vdc)<br>**----- End of picture text -----**<br>
**Figure 3. Low-Side Shunt Connections for "-DC1" Models Modifi ed for 36-75Vdc Non-Isolated Power (See Technical Note 5)**
where one supply powers the ammeter and a second supply powers the load, but the two supply grounds cannot be tied together. ‘-DC4’ isolatedsupply models include a built-in dc/dc converter to provide a minimum of 500Vdc isolation between the shunt (TB1) and power supply inputs (TB2).
**5. Operation With 36 to 75Vdc Power:** As shipped, all ‘-DC1’ models’ rated operating supply range is +5 to +40Vdc. However, ‘-DC1’ models can be user confi gured for 36 to 75Vdc operation by removing (opening) jumper J3. Please note that this user modifi cation can only be performed on ‘-DC1 power models. Also, all ‘-DC1’ models – including those that have been modifi ed for 36-75Vdc operation – can only be connected in low-side, grounded-shunt applications. See Figure 3 for detailed wiring information.
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**MPM_DCA5-20PC.C01** Page 3 of 6
## **- DCA5 20PC Series**
50mV & 100mV Input, LED-Display, Subminiature DC Ammeters
## **APPLICATIONS**
Any reconfi guration of J3 must be made prior to connecting the power supply and shunt to the ammeter.
**6. Replacing Analog Panel Meters:** DCA5-20PC ammeters can be used as replacements for analog panel meters that are driven by 50 or 100mV shunts, if a suitable dc voltage is available for powering the ammeter. In retrofi t applications, it is extremely important to determine the shunt’s electrical confi guration (i.e., high or low side). If any doubt exists as to the shunt’s location, use only ‘-DC4’ isolated-supply models. Rewiring must be performed with all power sources de-energized.
**7. Decimal Point Selection:** As shown in the Ordering Information guide, DCA520PC ammeters are multiple input-range devices. For example, with a 50mV input, DCA5-20PC-1-DC1 models can be confi gured to display “5.00”, “50.0, or “500” Amps by simply removing or relocating decimal-point-selector jumper J2 (see Figure 7). Decimal points serve as placeholders only; they have no affect on displayed accuracy or resolution. If jumper J2 is not available, solder gaps SG1, SG2, or SG3 can be used to select DP1 (“1.XXX”), DP2 (“1X.XX”), or DP3 (“1XX.X”), respectively.
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DCA5-20PC-X- DC1 -XX 1<br>1<br>é 1 4g . a<br>J3 J1 J2<br>J3 J1 J2 1 1<br>1 1 1 CAL 2 2<br>~ CAL sal 2 al=| al 2 | : 2 ~@: ~ Re) me ne @ 3 g!<br>3 J3 MUST BE INSTALLED<br>(FACTORY SETTING) FOR<br>5-40Vdc SUPPLIES<br>J1 AND J2 POSITIONS<br>DEPEND ON INPUT RANGE<br>"ay 1 TB1 2 Li e 1 TB2 2 1 TB1 = 2 C1, 1 TB2 2<br>90°°8° OG £% M1 IC<br>–IN +IN +V –V –IN +IN +V –V<br>+ –<br>SHUNT CAN BE IN<br>LOW OR HIGH SIDE DC SUPPLY #1<br>8-36Vdc<br>DISCHARGE – 12 V +<br>BATTERY<br>50mV SHUNT +<br>50mV SHUNT LOAD DC SUPPLY<br>#2<br>CHARGE – SOLAR + LOAD CURRENT –<br>PANELS<br>i es<br>– +<br>LOADS Figure 6. Using "-DC4" Isolated-Power Models to Maintain Isolation<br>Between Two Power Supplies<br>Figure 4. Typical Low-Side Shunt Connections for "-DC1" Models<br>Measuring a Battery’s Charge/Discharge Current<br>ALL MODELS<br>J2 CONFIGURATION<br>1 1<br>1<br>2 DP2 OFF<br>@ 0} ® ' @ 3 DP3 OFF<br>e J3 J1 J2 e @ dododad J3 J1 J2 e<br>CAL 12 123 CAL 1 2 1 2 1 2 3 SG3 SG2 1 2 3 DP2 ON(1X.XX)<br>SG1<br>o l cea” “ g S e es fi<br>1 DP3 ON<br>He{C I it coe =ei | 2 3 (1XX.X)<br>1 TB1 2 Cd 1 TB2 2 ach 1 TB1 2 Vi . 1 TB2 ' 2 A<br>J1 CONFIGURATION<br>M1<br>1 2 DP1 OFF<br>—S a<br>–IN +IN +V –V 1 DP1 ON<br>2 (1.XXX)<br>+ DC SUPPLY –<br>8-36Vdc Figure 7. Decimal Point Selection Using J2 and J1<br>he —_li=<br>(Applies to All Models)<br>50mV SHUNT<br>POWER<br>LOAD CURRENT GROUND<br>(0Vdc)<br>LOAD<br>**----- End of picture text -----**<br>
**Figure 5. High-Side Shunt Connections for "-DC4" 8-36Vdc Isolated-Power Models**
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**MPM_DCA5-20PC.C01** Page 4 of 6
**- DCA5 20PC Series**
50mV & 100mV Input, LED-Display, Subminiature DC Ammeters
## **APPLICATIONS**
**8. Operation With 100mV Shunts:** Many DCA5-20PC Series ammeters can also operate with 100mV shunts. This is due to the fact that when they are driven by a 100mV input, the display readings are double those of a 50mV input. However, a 50mV shunt cannot be used in a 100mV application because its maximum current rating will be exceeded.
For our customer’s convenience, Murata Power Solutions offers a series of 50mV and 100mV chassis-mount dc shunts that can be used with DCA5-20PC ammeters. Part numbers for accessory shunts can be found in the Ordering Information section. A data sheet describing these shunts is available at www.murata-ps.com.
Table 1 indicates the obtainable readings of the seven DCA5-20PC models that can be operated with 100mV shunts. Be sure to enable the correct decimal point (see decimal point selection instructions).
**9. Noisy Power Supplies:** Some power supplies contain high-frequency switching devices that may conduct and/or radiate signifi cant noise onto the low-level 50/100mV shunt signal. Even though the DCA520PC incorporates built-in fi ltering at its shunt input, some portion of this noise may be amplifi ed and subsequently measured by the DCA5-
20PC’s sensitive circuitry. The amplifi ed noise introduces errors that are particularly noticeable at zero load current (i.e., the ammeter may not display a relatively steady “000” reading).
Connecting an external, unpolarized capacitor across TB1’s “+” and “–” inputs, and/or across the shunt’s 50mV output terminals, can help reduce noise-related display errors. In certain situations, the use of twisted pair or shield wiring may be required. As a general rule, avoid using excessively long leads between the ammeter and the shunt.
**Table 1. 100mV Shunt Readings ***
|~~**Model**~~|~~**100mV Shunt Readings**~~|
|---|---|
|**DCA5-20PC-1**|10.00A/100.0A/1000A|
|**DCA5-20PC-2**|1.999A/19.99A/199.9A/1999A|
|**DCA5-20PC-3**|60.0A/600A|
|**DCA5-20PC-4**<br>**DCA5-20PC-7**|150.0A/1500A<br>50.0A/500A|
|**DCA5-20PC-8**|800A|
|**DCA5-20PC-9**|1200A|
* With respective decimal point enabled
## **PANEL INSTALLATION**
## **All connections and modifi cations must be made after the ammeter is securely attached to the panel, with all load and supply voltages de-energized (off).**
The installed wire-positions should be such that minimal forces are applied to TB1, TB2, and the ammeter itself. In high-vibration environments, the use of wiring strain-reliefs is recommended.
To insure a secure panel-mount installation, MPS recommends using the DMS-BZL4-C (with sealing gasket) bezel assembly supplied with each
ammeter. See the Mechanical Specifi cations section for detailed panel cutout and ammeter dimensions.
Following the four-step sequence shown in Figure 8 below, being careful not to apply excessive force or twisting motions, insert the ammeter into the panel opening. When using the DMS-BZL4-C’s sealing gasket, make sure it is positioned between the ammeter’s fl ange and the panel’s front surface. Be sure to use and securely tighten all four screws supplied with the bezel assembly.
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Step 1. Step 2. Step 3. Step 4.<br>3<br>1<br>PANEL PANEL PANEL<br>2<br>s —_<br>eg —:<br>4<br>**----- End of picture text -----**<br>
**Figure 8. Panel Installation**
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**MPM_DCA5-20PC.C01** Page 5 of 6
**- DCA5 20PC Series**
50mV & 100mV Input, LED-Display, Subminiature DC Ammeters
## **MECHANICAL SPECIFICATIONS**
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0.475<br>i eee (12.1) 1.00<br>(25.4)<br>MECHANICAL DIMENSIONS: Inches (mm)<br>TOLERANCES: 2 PL DEC ±0.02 (±0.51) 0.040 er 1.30 0.040 0.80<br>3 PL DEC ±0.010 (±0.254) (1.02) (33.0) (1.02) (20.3)<br>1.38 0.88<br>— (35.1) +2 (22.4)<br>1.42<br>—<br>(36.1)<br>FRONT VIEW BACK VIEW<br>1<br>J3 J1 J2<br>CAL 12 21 12 SG3<br>3 SG2<br>SG1<br>1 TB1 2 1 TB2 2<br>DP1 DP2 DP3<br>–IN +IN +V –V<br>**----- End of picture text -----**<br>
## **BEZEL INSTALLATION AND RECOMMENDED DRILL AND PANEL CUTOUT**
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DMS-BZL4 BEZEL RECOMMENDED DRILL AND PANEL CUTOUT DIMENSIONS<br>#2-56 INSERT 0.187<br>0.156 (3.96) DEEP (4.75) 0.116 (2.95)<br>FRONT VIEW man INTERNAL CORNER RADII:<br>0.032 (0.81) MAX.<br>1.280 1.07 0.838<br>(32.51) (27.18) (21.29)<br>| =-<br>1.336 (33.93) 0.145 (3.68)<br>1.826 (46.38)<br>1.626 (41.30)<br>0.093 (2.362) DIAMETER (4 REQUIRED)<br>ONLY WHEN USING SUPPLIED BEZEL ASSEMBLY<br>**----- End of picture text -----**<br>
## Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfi eld, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED
**This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/**
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifi cations are subject to change without notice. _**© 2015 Murata Power Solutions, Inc.**_
**www.murata-ps.com/support**
**MPM_DCA5-20PC.C01** Page 6 of 6
Updated at June 9, 2026
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →